I paint a lot with acrylics. I don’t think that there’s anything similar to liquid white, clear or black. Actually my biggest problem with them is the sky. Also the reflections are harder to do. It works better on canvas or canvas panel than on paper. For the other parts you don’t really need to have it liquid. Here you can really use the advantages of acrylics e.g. in creating different layers without having troubles in mudmixing or get the paint stick. I also paint Bob Ross paintings with oils, they are a bit easier to follow but you can also do a lot of them in acrylics. Maybe all, but in my opinion there are a few skies which I can’t do. But no need to follow 100%.